EP 2377815 A4 20120801 - AMMONIA SYNTHESIS METHOD
Title (en)
AMMONIA SYNTHESIS METHOD
Title (de)
VERFAHREN ZUR SYNTHESE VON AMMONIAK
Title (fr)
PROCÉDÉ DE SYNTHÈSE DE L'AMMONIAC
Publication
Application
Priority
- JP 2009071843 W 20091222
- JP 2009003851 A 20090109
Abstract (en)
[origin: EP2377815A1] The invention provides a process for efficient synthesis of ammonia. The process of the invention for synthesis of ammonia comprises (a) a water-splitting step (101) in which water is decomposed to obtain a first source gas comprising hydrogen and oxygen, (b) a first oxygen removal step (102) in which the oxygen contained in the first source gas is at least partially separated and removed by an oxygen separating membrane or hydrogen separating membrane to obtain a second source gas having a lower oxygen concentration than the first source gas, (c) a second oxygen removal step (103) in which the oxygen in the second source gas is reacted with hydrogen to produce water for removal, or is adsorbed onto an adsorption medium for removal, to obtain a third source gas having a lower oxygen concentration than the second source gas, and (d) an ammonia synthesis step (104) in which the hydrogen in the third source gas is reacted with nitrogen to synthesize ammonia.
IPC 8 full level
C01C 1/04 (2006.01); B01J 35/00 (2024.01); C01B 3/02 (2006.01); C01B 3/04 (2006.01); C01B 3/06 (2006.01); C01B 3/50 (2006.01); C01B 3/56 (2006.01); C01B 5/00 (2006.01); C01B 13/02 (2006.01)
CPC (source: EP US)
C01B 3/025 (2013.01 - EP US); C01B 3/042 (2013.01 - EP US); C01B 3/061 (2013.01 - EP US); C01B 3/063 (2013.01 - EP US); C01B 3/501 (2013.01 - EP US); C01B 3/56 (2013.01 - EP US); C01B 5/00 (2013.01 - EP US); C01B 13/0207 (2013.01 - EP US); C01B 13/0251 (2013.01 - EP US); C01B 13/0281 (2013.01 - EP US); C01C 1/0405 (2013.01 - EP US); B01J 35/39 (2024.01 - EP US); C01B 2203/042 (2013.01 - EP US); C01B 2203/068 (2013.01 - EP US); C01B 2210/0053 (2013.01 - EP US); Y02E 60/36 (2013.01 - EP US); Y02P 20/133 (2015.11 - EP US); Y02P 20/52 (2015.11 - EP US)
Citation (search report)
- [XI] US 2005019244 A1 20050127 - SPIEGELMAN JEFFREY J [US], et al
- [A] KOGAN A: "Direct solar thermal splitting of water and on-site separation of the products--II. Experimental feasibility study", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, ELSEVIER SCIENCE PUBLISHERS B.V., BARKING, GB, vol. 23, no. 2, 1 February 1998 (1998-02-01), pages 89 - 98, XP004101139, ISSN: 0360-3199, DOI: 10.1016/S0360-3199(97)00038-4
- [A] KOGAN A: "Direct solar thermal splitting of water and on-site separation of the products - IV. Development of porous ceramic membranes for a solar thermal water-splitting reactor", INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, ELSEVIER SCIENCE PUBLISHERS B.V., BARKING, GB, vol. 25, no. 11, 1 November 2000 (2000-11-01), pages 1043 - 1050, XP004208298, ISSN: 0360-3199, DOI: 10.1016/S0360-3199(00)00024-0
- [A] KODAMA T: "High-temperature solar chemistry for converting solar heat to chemical fuels", PROGRESS IN ENERGY AND COMBUSTION SCIENCE, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 29, no. 6, 1 January 2003 (2003-01-01), pages 567 - 597, XP004470708, ISSN: 0360-1285, DOI: 10.1016/S0360-1285(03)00059-5
- [A] ABANADES S ET AL: "Thermochemical hydrogen production from a two-step solar-driven water-splitting cycle based on cerium oxides", SOLAR ENERGY, PERGAMON PRESS. OXFORD, GB, vol. 80, no. 12, 1 December 2006 (2006-12-01), pages 1611 - 1623, XP027986165, ISSN: 0038-092X, [retrieved on 20061201]
- See also references of WO 2010079726A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2377815 A1 20111019; EP 2377815 A4 20120801; CN 102348642 A 20120208; JP 2010159194 A 20100722; JP 5373410 B2 20131218; US 2011286907 A1 20111124; US 8623313 B2 20140107; WO 2010079726 A1 20100715
DOCDB simple family (application)
EP 09837611 A 20091222; CN 200980157935 A 20091222; JP 2009003851 A 20090109; JP 2009071843 W 20091222; US 200913143619 A 20091222